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Control method and system of shield propulsion system

A technology of propulsion system and control method, which is applied in the field of control method and system of shield tunneling propulsion system, and can solve problems such as large influence of human factors

Active Publication Date: 2021-12-28
SHANGHAI TUNNEL ENG CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide a control method and system of the shield tunnel propulsion system, solve the problem that human factors are greatly influenced in the shield tunnel propulsion control, based on the theoretical basis of mathematics and mechanics, accurate Control each jack in a precise manner, realizing the precise control of the force of the shield propulsion system

Method used

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  • Control method and system of shield propulsion system
  • Control method and system of shield propulsion system
  • Control method and system of shield propulsion system

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specific Embodiment approach

[0090] by figure 2 For example, set the total thrust P=11496kN, M v =-5500kN·m, M h =-350kN·m, there are eight jacks in the divided area A and B, and there is one jack on the negative half axis of the Y axis. Since the A area and the B area are symmetrically set, the parameters of the two areas are the same, as shown in the following table:

[0091]

[0092]

[0093] Set the total thrust P=11496kN, then calculate M v =-5500kN·m, M h =-350kN m;

[0094] The expression for the jack in area A and on the negative half axis of the Y axis is,

[0095] t i = t 1 +k 1 l i

[0096] The expression for the jack in region B is,

[0097] t i = t 1 +k 2 l i

[0098] According to the above expressions, the following equations can be obtained simultaneously

[0099] Resultant force equation

[0100] p=17t 1 +28.778k 1 +22.673k 2

[0101] Horizontal resultant moment equation

[0102] -M h =49.841(k 1 -k 2 )

[0103] Vertical resultant moment equation

[0104] ...

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Abstract

The present invention relates to a control method and system of a shield tunneling propulsion system, comprising the following steps: setting the total thrust P required for shield tunneling propulsion, and the moment M of the total thrust P in the X-axis direction h and the moment M in the Y-axis direction v ; Divide N jacks along the Y axis to form symmetrical areas A and B, and set the jacking force of the jacks at the top of the shield propulsion system to be t 1 , it is set that the jacking force of each jack in Area A and Area B changes linearly with the vertical distance from each jack to the top jack in the corresponding area, and the change rate corresponds to k 1 and k 2 ; Use the formula of resultant force and moment to calculate the jacking force of each jack. The invention effectively solves the problem that human factors are greatly influenced in the shield tunneling control, and precisely controls each jack based on the theoretical basis of mathematics and mechanics, thereby improving the safety and stability of construction.

Description

technical field [0001] The invention relates to the field of shield tunneling construction, in particular to a control method and system for a shield tunneling propulsion system. Background technique [0002] Generally, the partitioning method of the shield tunneling system is to divide the small-diameter shield tunnel into four zones, and the super-large diameter shield tunneling system is divided into six zones. During actual shield tunneling construction, the jack oil pressure in each zone is the same, and the shield driver controls the opening of the jack oil pressure valve to achieve the purpose of tunneling and deviation correction. [0003] However, this method relies too much on the manual operation experience of the shield driver, the control accuracy is not high and the influence of human factors is greater. In reality, engineering accidents often occur due to the unskilled operation of the shield driver. As the shield becomes more intelligent The development of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06
CPCE21D9/0621
Inventor 朱叶艇朱雁飞龚卫张闵庆秦元翟一欣袁向华吴文斐黄圣黄健范杰
Owner SHANGHAI TUNNEL ENG CO LTD
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